European and American wheels do not just differ by a pocket. Every bet's edge moves with the zero count, and la partage or surrender change only one bet type. The numbers, worked and sourced.
A roulette payout chart is only complete when it shows the true odds beside the payout, because the gap between them is the edge. Every standard bet, both wheels, the working, and a £10 cost per spin.
A worked roulette ledger separates winning chips from net profit, counts overlapping numbers once and shows why covering red and black leaves a zero loss.
No. A run of reds is a record of spins that have already settled. The wheel sets the rate: 2.70% of every pound staked on a 37-pocket wheel, 5.26% on a 38-pocket one, whatever pattern the stakes follow.
A single-zero wheel has 37 pockets and pays a straight-up bet 35 to 1. Put those two numbers in one sum and every standard bet loses about £0.27 for each £10 staked.